<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>Echarts生成</title>
    <script src="./echarts.min.js"></script>
    <script src="./china.js"></script>
</head>
<body>

<select id="mySelectStart">
</select>
<span>到</span>
<select id="mySelectEnd">
</select>
<button onclick="getSelectedValues()">重新生成</button>

<div id="main" style="width: 1920px;height:900px;"></div>

</body>

<script type="text/javascript">
    var myChart = echarts.init(document.getElementById('main'));

    // 小飞机矢量图
    var planePath = 'path://M1705.06,1318.313v-89.254l-319.9-221.799l0.073-208.063c0.521-84.662-26.629-121.796-63.961-121.491c-37.332-0.305-64.482,36.829-63.961,121.491l0.073,208.063l-319.9,221.799v89.254l330.343-157.288l12.238,241.308l-134.449,92.931l0.531,42.034l175.125-42.917l175.125,42.917l0.531-42.034l-134.449-92.931l12.238-241.308L1705.06,1318.313z';
    // 自定义图标的话用这种
    var planePath = 'image://1.svg';


    var geoCoordMap = {
        '上海': [121.4648, 31.2891],
        '东莞': [113.8953, 22.901],
        '东营': [118.7073, 37.5513],
        '中山': [113.4229, 22.478],
        '临汾': [111.4783, 36.1615],
        '临沂': [118.3118, 35.2936],
        '丹东': [124.541, 40.4242],
        '丽水': [119.5642, 28.1854],
        '乌鲁木齐': [87.9236, 43.5883],
        '佛山': [112.8955, 23.1097],
        '保定': [115.0488, 39.0948],
        '兰州': [103.5901, 36.3043],
        '包头': [110.3467, 41.4899],
        '北京': [116.4551, 40.2539],
        '北海': [109.314, 21.6211],
        '南京': [118.8062, 31.9208],
        '南宁': [108.479, 23.1152],
        '南昌': [116.0046, 28.6633],
        '南通': [121.1023, 32.1625],
        '厦门': [118.1689, 24.6478],
        '台州': [121.1353, 28.6688],
        '合肥': [117.29, 32.0581],
        '呼和浩特': [111.4124, 40.4901],
        '咸阳': [108.4131, 34.8706],
        '哈尔滨': [127.9688, 45.368],
        '唐山': [118.4766, 39.6826],
        '嘉兴': [120.9155, 30.6354],
        '大同': [113.7854, 39.8035],
        '大连': [122.2229, 39.4409],
        '天津': [117.4219, 39.4189],
        '太原': [112.3352, 37.9413],
        '威海': [121.9482, 37.1393],
        '宁波': [121.5967, 29.6466],
        '宝鸡': [107.1826, 34.3433],
        '宿迁': [118.5535, 33.7775],
        '常州': [119.4543, 31.5582],
        '广州': [113.5107, 23.2196],
        '廊坊': [116.521, 39.0509],
        '延安': [109.1052, 36.4252],
        '张家口': [115.1477, 40.8527],
        '徐州': [117.5208, 34.3268],
        '德州': [116.6858, 37.2107],
        '惠州': [114.6204, 23.1647],
        '成都': [103.9526, 30.7617],
        '扬州': [119.4653, 32.8162],
        '承德': [117.5757, 41.4075],
        '拉萨': [91.1865, 30.1465],
        '无锡': [120.3442, 31.5527],
        '日照': [119.2786, 35.5023],
        '昆明': [102.9199, 25.4663],
        '杭州': [119.5313, 29.8773],
        '枣庄': [117.323, 34.8926],
        '柳州': [109.3799, 24.9774],
        '株洲': [113.5327, 27.0319],
        '武汉': [114.3896, 30.6628],
        '汕头': [117.1692, 23.3405],
        '江门': [112.6318, 22.1484],
        '沈阳': [123.1238, 42.1216],
        '沧州': [116.8286, 38.2104],
        '河源': [114.917, 23.9722],
        '泉州': [118.3228, 25.1147],
        '泰安': [117.0264, 36.0516],
        '泰州': [120.0586, 32.5525],
        '济南': [117.1582, 36.8701],
        '济宁': [116.8286, 35.3375],
        '海口': [110.3893, 19.8516],
        '淄博': [118.0371, 36.6064],
        '淮安': [118.927, 33.4039],
        '深圳': [114.5435, 22.5439],
        '清远': [112.9175, 24.3292],
        '温州': [120.498, 27.8119],
        '渭南': [109.7864, 35.0299],
        '湖州': [119.8608, 30.7782],
        '湘潭': [112.5439, 27.7075],
        '滨州': [117.8174, 37.4963],
        '潍坊': [119.0918, 36.524],
        '烟台': [120.7397, 37.5128],
        '玉溪': [101.9312, 23.8898],
        '珠海': [113.7305, 22.1155],
        '盐城': [120.2234, 33.5577],
        '盘锦': [121.9482, 41.0449],
        '石家庄': [114.4995, 38.1006],
        '福州': [119.4543, 25.9222],
        '秦皇岛': [119.2126, 40.0232],
        '绍兴': [120.564, 29.7565],
        '聊城': [115.9167, 36.4032],
        '肇庆': [112.1265, 23.5822],
        '舟山': [122.2559, 30.2234],
        '苏州': [120.6519, 31.3989],
        '莱芜': [117.6526, 36.2714],
        '菏泽': [115.6201, 35.2057],
        '营口': [122.4316, 40.4297],
        '葫芦岛': [120.1575, 40.578],
        '衡水': [115.8838, 37.7161],
        '衢州': [118.6853, 28.8666],
        '西宁': [101.4038, 36.8207],
        '西安': [109.1162, 34.2004],
        '贵阳': [106.6992, 26.7682],
        '连云港': [119.1248, 34.552],
        '邢台': [114.8071, 37.2821],
        '邯郸': [114.4775, 36.535],
        '郑州': [113.4668, 34.6234],
        '鄂尔多斯': [108.9734, 39.2487],
        '重庆': [107.7539, 30.1904],
        '金华': [120.0037, 29.1028],
        '铜川': [109.0393, 35.1947],
        '银川': [106.3586, 38.1775],
        '镇江': [119.4763, 31.9702],
        '长春': [125.8154, 44.2584],
        '长沙': [113.0823, 28.2568],
        '长治': [112.8625, 36.4746],
        '阳泉': [113.4778, 38.0951],
        '青岛': [120.4651, 36.3373],
        '韶关': [113.7964, 24.7028]
    };


    // 默认武汉到苏州，如果想画多条则打开注释，按找这种格式写
    var whereToWhere = [[{
        name: '武汉'
    },
        {
            name: '苏州',
            value: 120
        }],
        // [{
        // name: '武汉'
        // },
        // {
        // name: '北京',
        // value: 120
        // }],
    ];


    var convertData = function (data) {
        var res = [];
        for (var i = 0; i < data.length; i++) {
            var dataItem = data[i];
            var fromCoord = geoCoordMap[dataItem[0].name]; // 出发地的经纬度
            var toCoord = geoCoordMap[dataItem[1].name]; // 目的地的经纬度
            if (fromCoord && toCoord) {
                res.push({
                    fromName: dataItem[0].name,
                    toName: dataItem[1].name,
                    coords: [fromCoord, toCoord],
                    value: dataItem[1].value
                });
            }
        }
        return res;
    };

    // 定义了对指定上述城市用SVG画图时线条的颜色
    var color = ['#a6c84c'];

    function getSeries() {
        var series = [];
        series.push(
            // 第一组：两地之间的动态轨迹
            {
                name: '轨迹图1',
                type: 'lines',
                zlevel: 1,
                // 画布的权重，权重大的在最上面
                effect: {
                    show: true,
                    // 打开线条特效
                    period: 6,
                    // 特效动画时间，单位s
                    trailLength: 0.7,
                    // 特效尾迹的长度，值越大越长
                    color: '#fff',
                    symbolSize: 3 // 特效标记的大小
                },
                // 线条的样式
                lineStyle: {
                    normal: {
                        color: color[0],
                        width: 2,
                        curveness: 0.2 // 边的曲度，取值0~1，值越大曲度越大
                    }
                },
                data: convertData(whereToWhere) // 对北上广的数据转换成特定格式
            },
            // 第二组：两地之间的线条
            {
                name: '轨迹图1',
                type: 'lines',
                zlevel: 2,
                showAllSymbol: true,
                showSymbol: true,
                effect: {
                    show: true,
                    period: 6,
                    trailLength: 0,
                    symbol: planePath,
                    symbolSize: 60
                },
                lineStyle: {
                    normal: {
                        color: color[0],
                        width: 1,
                        opacity: 0.4,
                        // 图形透明度
                        curveness: 0.2
                    }
                },
                data: convertData(whereToWhere)
            },
            {
                name: '轨迹图1',
                type: 'effectScatter',
                // 带有涟漪特效的散点图，起到视觉突出的效果
                coordinateSystem: 'geo',
                // 该系列使用的坐标系指定为地理坐标系
                zlevel: 2,
                rippleEffect: {
                    brushType: 'stroke' // 波纹的绘制方式
                },
                label: {
                    normal: {
                        show: true,
                        position: 'top',
                        // 地区名称标签显示位置
                        formatter: '{b}',
                        // 格式化显示标签，b指的是系列的名称
                        fontSize: 20,
                        fontWeight: 600,
                        color: '#f4e925',
                        shadowBlur: 30,
                        shadowColor: '#333'
                    }
                },
                symbolSize: function (val) {
                    // val：[121.4648, 31.2891, 95]
                    return val[2] / 8; // 目的地涟漪特效的大小
                },
                itemStyle: {
                    normal: {
                        color: color[0]
                    }
                },
                // 解析：item[1] ==> whereToWhere：[[{name:'北京'}, {name:'上海',value:95}],...]
                data: whereToWhere.map(function (dataItem) {
                    // dataItem ==> [{name:'北京'}, {name:'上海',value:95}]
                    return {
                        name: dataItem[1].name,
                        value: geoCoordMap[dataItem[1].name].concat([dataItem[1].value])
                    };
                })
            }

            ,
            {
                name: '轨迹图1',
                type: 'effectScatter',
                // 带有涟漪特效的散点图，起到视觉突出的效果
                coordinateSystem: 'geo',
                // 该系列使用的坐标系指定为地理坐标系
                zlevel: 2,
                rippleEffect: {
                    brushType: 'stroke' // 波纹的绘制方式
                },
                label: {
                    normal: {
                        show: true,
                        position: 'top',
                        // 地区名称标签显示位置
                        formatter: '{b}' // 格式化显示标签，b指的是系列的名称
                        ,
                        fontSize: 20,
                        fontWeight: 600,
                        color: '#f4e925',
                        shadowBlur: 500,
                        shadowColor: '#333'
                    }
                },
                symbolSize: function (val) {
                    // val：[121.4648, 31.2891, 95]
                    return val[2] / 8; // 目的地涟漪特效的大小
                },
                itemStyle: {
                    normal: {
                        color: color[0]
                    }
                },
                // 解析：item[1] ==> whereToWhere：[[{name:'北京'}, {name:'上海',value:95}],...]
                data: whereToWhere.map(function (dataItem) {
                    return {
                        name: dataItem[0].name,
                        value: geoCoordMap[dataItem[0].name].concat([120])
                    };
                })
            }
        );

        return series;
    }

    var series = getSeries();

    // option：指定图表的配置项和数据
    var option = {
        // 背景颜色
        backgroundColor: '#8799a3',
        title: {
            text: '路线图',
            left: 'center',
            textStyle: {
                color: 'black'
            }
        },
        tooltip: {
            trigger: 'item'
        },
        legend: {
            orient: 'vertical',
            top: 'bottom',
            left: 'right',
            data: ['轨迹图1'],
            textStyle: {
                color: 'black'
            },
            selectedMode: 'single' // 图例选择的模式：single和multiple分别对应单选和多选
        },
        // geo：地理坐标系组件
        geo: {
            map: 'china',
            label: {
                emphasis: {
                    // 鼠标触发显示地区名称
                    show: true
                }
            },
            roam: true,
            itemStyle: {
                normal: {
                    // 正常时地区的颜色
                    areaColor: '#323c48',
                    borderColor: '#404a59'
                },
                emphasis: {
                    // 鼠标经过时地区的颜色
                    areaColor: '#c99979'
                }
            }
        },
        series: series
    };

    myChart.setOption(option);


    var mySelectStart = document.getElementById("mySelectStart");
    var mySelectEnd = document.getElementById("mySelectEnd");
    for (var city in geoCoordMap) {
        var optionStart = document.createElement("option");
        optionStart.text = city;
        optionStart.value = city;
        mySelectStart.add(optionStart);
        var optionEnd = document.createElement("option");
        optionEnd.text = city;
        optionEnd.value = city;
        mySelectEnd.add(optionEnd);
    }

    function getSelectedValues() {
        var startValue = mySelectStart.value;
        var endValue = mySelectEnd.value;
        // 根据选择的点重新生成数据源
        whereToWhere = [[{
            name: startValue
        },
            {
                name: endValue,
                value: 120
            }]
        ];

        option.series = getSeries();
        myChart.setOption(option, true);
    }
</script>
</html>